> I've seen that I can change this value 'on the fly' thrue the file > /proc/sys/kernel/shmmax. But is there a reason for setting this to the > value of 0x3fa000, or can I change it without any risk ? Where is this > value coming from ? (The default value on i386 is 32 MB). >From a purely suck-it-and-see point of view I changed mine to get cdrecord to work, in the kernel, and have not as yet experienced any problems :) Matt.